General · Learning hub

Performance Optimization notes for developers

Master Performance Optimization with a curated set of 2 developer notes — core concepts, patterns, and interview prep. Maintained by the DevRecall team.

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01 · Performance Optimization

Core Web Vitals & Loading Performance

Core Web Vitals & Loading Performance LCP, INP, CLS — what Google ranks on, what each one measures, and the concrete levers to move them. The Three Vitals Metric Measures Good Needs Poor ────── ──────────────────────────…

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02 · Performance Optimization

Bundle Size, Rendering & React Performance

Bundle Size, Rendering & React Performance Code-splitting, lazy loading, render minimisation, and the React-specific patterns that come up in audits. Code-Splitting & Lazy Loading // Dynamic import — splits into a separa…

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TypeScriptgeneral

Interview Questions

TypeScript Interview Questions Comprehensive TypeScript interview questions covering type system, generics, utility types, and best practices: Fundamentals 1. What is TypeScript? TypeScript is a typed…

Mar 28, 2026

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TypeScriptgeneral

Advanced Types (Generics & Utility Types)

TypeScript Advanced Types Generics // Generic function function identity<T>(arg: T): T { return arg; } const num = identity<number>(42); // Explicit const str = identity('hello'); // Inferred // Gener…

Mar 3, 2026

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